Abstract:
:The root canal anatomy of 19 mandibular second molars with C-shaped canals was investigated by rendering the roots transparent and allowing the canal system to be observed by black ink infiltration. The presence of three root canals was most frequent, and lateral canals were found in all roots. Transverse anastomoses were found in 15 of the 19 roots. The apical foramen was most commonly situated away from the apex, and apical deltas were found in 16 of the 19 roots. The C-shaped canals were found more frequently in Asians than in other racial groups (P less than 0.02). The formation of C-shaped roots and their racial predilection is discussed. A case report of the root canal treatment of a C-shaped canal is included and suggestions are made concerning suitable procedures for use in root canal treatment of these complex canal systems.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Manning SAdoi
10.1111/j.1365-2591.1990.tb00801.xsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
40-5issue
1eissn
0143-2885issn
1365-2591journal_volume
23pub_type
杂志文章abstract:AIM:To assess the success rate of the root-end filling material, Mineral Trioxide Aggregate (MTA). METHODOLOGY:Referred adult patients were recruited using strict entry criteria and randomly allocated to receive MTA or IRM. A standardized surgical technique was employed: the root end was resected perpendicularly and a...
journal_title:International endodontic journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2591.2003.00682.x
更新日期:2003-08-01 00:00:00
abstract:AIM:To investigate the root form and canal morphology of mandibular first molar teeth in a Taiwan Chinese population. METHODOLOGY:A total of 183 mandibular first molars were collected and examined visually through a dissecting microscope after rendering the teeth transparent. The number of roots, number of canals and ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2009.01619.x
更新日期:2009-11-01 00:00:00
abstract:AIM:To investigate the prevalences of four Treponema species in primary root canal infections using a nested PCR assay. METHODOLOGY:Samples were obtained from 32 infected root canals. Twenty-two cases showed chronic asymptomatic periradicular lesions and 10 symptomatic cases were diagnosed as acute apical periodontiti...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.0143-2885.2003.00607.x
更新日期:2003-01-01 00:00:00
abstract::The cutting heads of the first 18 instruments in six sets of clinically used Lightspeed instruments (sizes 20-65) were examined in a scanning electron microscope (SEM). Three sets had been used by full-time faculty and discarded as follows: instrument sizes 20-32.5 after 18 treated root canals; instrument sizes 35-47....
journal_title:International endodontic journal
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:AIM:To investigate interfacial stress distribution in restored root filled teeth with various post lengths and crown heights. METHODOLOGY:Three-dimensional mathematical models of a root filled mandibular premolar tooth were constructed. Parts of the tooth structures were replaced with ceramic crowns having three crown...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12397
更新日期:2015-11-01 00:00:00
abstract::The reliability of two commonly used methods of sealability testing, dye leakage under normal atmospheric pressure and dye leakage in a partial vacuum, was tested using a repeated studies design. Forty extracted teeth were instrumented and obturated using lateral condensation of gutta-percha and Sealapex sealer. One-h...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00291.x
更新日期:1995-05-01 00:00:00
abstract:AIMS:To (i) determine the prevalence of persistent dento-alveolar pain following nonsurgical and/or surgical endodontic treatment conducted in a teaching dental hospital and (ii) identify the risk factors associated with persistent pain after apparently successful root canal treatment. STUDY DESIGN:A total of 175 pati...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00923.x
更新日期:2005-03-01 00:00:00
abstract::Following extraction of a symptomatic mandibular premolar which had been subjected to two periradicular surgical procedures, significant apical healing was identified histologically. The implications of these findings are discussed in relation to contemporary advocated treatment regimens, case assessment, and interpre...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00280.x
更新日期:1994-11-01 00:00:00
abstract:AIM:To assess and correlate three distinct states of severely painful endodontically derived inflammation with their depiction on periapical radiographs using periapical index (PAI) scores. METHODOLOGY:During a period of 15 months, 368 consecutively enrolled patients with suspected endodontic emergency conditions were...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13407
更新日期:2021-02-01 00:00:00
abstract:AIM:To evaluate the effect of capsaicin on substance P (SP) expression during induced inflammation in rat pulp tissue. METHODOLOGY:Radioimmunoanalysis was used to measure SP levels in 36 mandibular molar pulps taken from six Wistar rats. Twelve samples were obtained from healthy pulps and used as negative control grou...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00893.x
更新日期:2005-01-01 00:00:00
abstract:AIM:To analyse responses from dental practitioners (DPs) on how secure they felt as a newly graduated dentist, level of confidence or self-efficacy when performing root canal treatment (RCT), and if undergraduate (UG) education in Endodontics adequately met their needs in a dental practice. METHODOLOGY:An electronic q...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13455
更新日期:2020-11-30 00:00:00
abstract:AIM:To investigate amongst Greek endodontists the incidence of percutaneous injuries, the circumstances associated with them, the therapeutic measures taken after the injuries and their compliance with infection control measures. METHODOLOGY:One hundred and forty-seven endodontists met the inclusion criteria and were ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2012.02126.x
更新日期:2013-03-01 00:00:00
abstract:AIM:To evaluate the wear of root wall surfaces, the bond strength of sealers to dentine and the demineralization around root filling materials after canals were exposed to acid challenge in situ. METHODOLOGY:Eighty-seven roots of mandibular incisors were selected. Thirty-two were used in the laboratory bond strength s...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12858
更新日期:2018-03-01 00:00:00
abstract:AIM:To assess the inflammatory potential of biofilm matrix constituents of Enterococcus faecalis and Pseudomonas aeruginosa monospecies biofilms on macrophages. METHODOLOGY:In vitro biofilms of E. faecalis and P. aeruginosa were grown (7 days) in aerobic and anaerobic conditions. The biofilm matrix components: exopoly...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13093
更新日期:2019-07-01 00:00:00
abstract:AIMS:The aims of this study were to investigate the pattern of transmission of laser light through carious human molar teeth, and to examine the effect on light transmission of reactions to caries in the dentine. METHODOLOGY:Sectioned carious human molars were examined whilst illuminated from their external surfaces b...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2001.00428.x
更新日期:2001-10-01 00:00:00
abstract::A rare case of dens invaginatus involving a non-carious mandibular lateral incisor with periapical periodontitis is reported. Invaginated teeth present technical difficulties in their clinical management because of their abnormal anatomy. In the present case, non-surgical root canal therapy was chosen. A one-year foll...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00320.x
更新日期:1995-11-01 00:00:00
abstract:AIM:To determine the cleaning effectiveness and shaping ability of ProTaper and RaCe nickel-titanium rotary instruments during the preparation of curved root canals in extracted human teeth. METHODOLOGY:A total of 48 root canals of mandibular and maxillary molars with curvatures ranging between 25 degrees and 35 degre...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.0143-2885.2004.00783.x
更新日期:2004-04-01 00:00:00
abstract:AIM:To evaluate the shank-to-flute ratio in rotary nickel-titanium (Ni-Ti) instruments. METHODOLOGY:The cutting portion of 15 size 30 Ni-Ti rotary instruments, ProFile.04, ProFile.06, Pow R.02, Pow R.04 and Quantec series 2000, were examined. The handles of the instruments were fixed to a bench and supported by a remo...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00755.x
更新日期:2004-06-01 00:00:00
abstract:AIM:To compare 2D with 3D radiography in assessing the treatment outcome 1 year after periapical surgery. METHODOLOGY:In this prospective study, periapical radiographs (PA) and cone beam computed tomography (CBCT) were performed 1 year after periapical surgery. Three calibrated observers independently evaluated the ra...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12548
更新日期:2016-10-01 00:00:00
abstract:AIM:To evaluate the bond strength of a resin-based sealer (AH Plus) to root canal dentine after the removal of a zinc oxide-eugenol-based sealer (Endofill), using different retreatment techniques. METHODOLOGY:The root canals of sixty-four maxillary incisors were prepared with ProTaper and filled with Endofill/gutta-pe...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12170
更新日期:2014-05-01 00:00:00
abstract::Sodium hypochlorite (NaOCl), is the most popular irrigation solution used in root canal treatment but it is known to be an irritant to vital tissues. There have been many case reports dealing with toxic effects of this material. Although the allergic potential of NaOCl has been described in the medical literature, onl...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00247.x
更新日期:1994-05-01 00:00:00
abstract::Angiogenesis is the formation of new blood vessels based on a pre-existing vasculature. It comprises two processes, sprouting of endothelial cells and the division of vessels due to abnormal growth of the microvasculature. It has been demonstrated that substance P (SP) can induce angiogenesis either by modulating endo...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/iej.12627
更新日期:2017-04-01 00:00:00
abstract:AIM:To evaluate and compare the push-out bond strength of MTA Fillapex (Angelus, Londrina, Brazil) and iRoot SP (Innovative BioCeramix Inc., Vancouver, Canada) to the dentine walls of root canals. AH Plus (Dentsply DeTrey, Konstaz, Germany) and MTA (Angelus, Londrina, Brazil) were used as reference materials. METHODOL...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12519
更新日期:2016-08-01 00:00:00
abstract:AIM:To investigate in vitro the cytocompatibility of the calcium silicate-containing endodontic sealers MTA Fillapex and TotalFill BC Sealer on human periodontal ligament stem cells (hPDLSCs) by assaying their biological responses and compare them with that observed when using an epoxy resin-based sealer (AH Plus). ME...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12596
更新日期:2017-01-01 00:00:00
abstract:AIM:To identify the suitable ratio of alternative radiopacifiers to impart the necessary radiopacity to calcium silicate cements (CSC) and assess the purity of the radiopacifying agents. METHODOLOGY:Alternative radiopacifying materials for incorporation into CSC included barium sulphate, titanium oxide, zinc oxide, go...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2009.01621.x
更新日期:2010-01-01 00:00:00
abstract::An in vitro endodontic leakage model was used to compare the sealing ability of conventional retrograde amalgam fillings with a new retrograde filling technique by measuring dye leakage quantitatively. The new technique consisted of retrograde preparation of the root canal using the Endocursor, an endodontic handpiece...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1990.tb00856.x
更新日期:1990-09-01 00:00:00
abstract::This European Society of Endodontology (ESE) position statement on surgical extrusion, intentional replantation and tooth autotransplantation represents the consensus of an expert committee, convened by the ESE. A narrative review in the International Endodontic Journal (Plotino et al. 2020, international Endodontic J...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/iej.13456
更新日期:2021-01-26 00:00:00
abstract:AIM:To compare fracture patterns of posterior teeth temporized with: mesio-occlusal-distal (MOD) glass-ionomer cement (GIC) interim restorations, stainless steel (SS) bands, GIC dome overlays and GIC dome overlays with occlusal temporary restorations. METHODOLOGY:The root canals of 92 extracted human premolars and mol...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12102
更新日期:2013-12-01 00:00:00
abstract::The purpose of this study was to observe the quality of seal of the glass ionomer cement, Ketac-Endo, after treatment of the root canal wall. The root canals of 140 extracted human teeth were prepared biomechanically. The root canals were treated with either EDTA or received an intracanal dressing of calcium hydroxide...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00298.x
更新日期:1995-07-01 00:00:00
abstract::The aim of this study was to systematically review and critically analyse the published data on the treatment outcome (primary outcome) and on the cleaning and disinfection of root canals (secondary outcomes) achieved by negative pressure irrigation as compared to syringe irrigation. An electronic search was conducted...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/iej.12725
更新日期:2017-11-01 00:00:00